A decent defense in theory, but unfortunately for Az, he had made a potentially fatal miscalculation in both distance and timing. By wielding the trident centrally he allowed both ends to come into play, increasing versatility. This, however, decreased the range he so heavily counted on. Az's initial swing to the neck came only from the right side of the trident and did not utilize it's full length. At this point in time both fighters were within what could be described as close range.
Az's defense wasn't the only pre-calculated maneuver. Lamina had expected an attempted evasion from the start, hence her strategy for assault, which was very likely to hit because of a few factors that had previously been taken into consideration.
This was a matter of speed and distance. As the trident swung overhead, Lamina dipped below the oncoming blade whilst simultaneously moving and leaning far forward in order to close the distance. This wasn't necessary to bring her in range for the strike; after all, her arm's extended length coupled with her 33" blade would have sufficed just as half the length of Az's trident did. This was to secure the hit, to severely reduce the opponents "wiggle-room" and void an evasion. While Az did step back, Lamina had already moved in, the sword closing in with both the combined speed of her forward motion and the swift extension of her right arm.
What did all this mean? It was highly unlikely that his retreat would be anywhere near fast enough to escape a fencer's lunge. The same held true with his pivotal motion and parry, as his body would have to accelerate into a clockwise twist, he would have to reverse the inertia of his left arm from a rightward swing to a sweeping parry in the opposite direction, all before the schiavona's tapered point could make the swiftest forward motion in a straight line to the opponent's body.
Whether or not blood ran down the length of her blade from it's prospective point of entry into whatever soft torso target it could find, Az had still thrown his body into the motion of the parry, which was more than likely to arrive too late to be of much use. In response to opposite end of the trident now coming for her, she locked out her right arm to brace against the swing as she allowed the tridents left upper pole to strike against the extended quillion of her basket-hilt. By trapping the end of his weapon by the forte of her own, she would succeed in stealing enough leverage to halt the weapons inertia. As this happened she arose quickly, using her left hand to help propel her from the ground, and with her upward motion she dashed her sword along the length of his trident, blade sliding against the shaft, in an unforgivingly quick and painful slice to the fingers of the nearest pole-wielding hand. Given the unexpected nature of the cut from a forceful parry, there was no telegraph to this and it would be astounding if Az ever saw it coming.
After all was done within the few seconds, she did not expect Az to continue unscathed, or at all for that matter.